CVE-2026-19338
automateyournetwork MCPyATS generate_mermaid_markdown index.ts processGenerateRequest path traversal
Description
A vulnerability was identified in automateyournetwork MCPyATS up to 0.1.4. The affected element is the function processGenerateRequest of the file mcp_servers/mermaid/index.ts of the component generate_mermaid_markdown. The manipulation of the argument folder/name leads to path traversal. The attack must be carried out locally.
INFO
Published Date :
Aug. 9, 2026, 7:17 a.m.
Last Modified :
Aug. 9, 2026, 7:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-19338
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update automateyournetwork MCPyATS to a version later than 0.1.4.
- Apply vendor-supplied patches for the affected component.
- Review and validate input for folder and name arguments.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19338.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19338 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19338
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19338 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19338 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 09, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:automateyournetwork:mcpyats:*:*:*:*:*:*:*:*'], 'vendor': 'automateyournetwork', 'modules': ['generate_mermaid_markdown'], 'product': 'MCPyATS', 'versions': [{'status': 'affected', 'version': '0.1.0'}, {'status': 'affected', 'version': '0.1.1'}, {'status': 'affected', 'version': '0.1.2'}, {'status': 'affected', 'version': '0.1.3'}, {'status': 'affected', 'version': '0.1.4'}]}] Added Description A vulnerability was identified in automateyournetwork MCPyATS up to 0.1.4. The affected element is the function processGenerateRequest of the file mcp_servers/mermaid/index.ts of the component generate_mermaid_markdown. The manipulation of the argument folder/name leads to path traversal. The attack must be carried out locally. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:L/AC:L/Au:S/C:P/I:P/A:P) Added CWE CWE-22 Added Reference https://github.com/automateyournetwork/MCPyATS/ Added Reference https://github.com/automateyournetwork/MCPyATS/issues/22 Added Reference https://vuldb.com/cve/CVE-2026-19338 Added Reference https://vuldb.com/submit/865262 Added Reference https://vuldb.com/vuln/387174 Added Reference https://vuldb.com/vuln/387174/cti